Device for mounting wall parts

ABSTRACT

A device for securing building parts such as a base plate to a concrete foundation wherein a nut is threadedly engaged with a rod having a cutting edge, the rod being disposed in a tube anchored in the foundation, whereby the rod can be screwed into the material of the base plate by turning the nut.

11] 3,722,165 51 Mar. 27,1973

United Sttes Patent 1 Forsberg et a1.

[ DEVICE FOR MOUNTING WALL 2 99 um n WUUNU .55

PARTS [75] Inventors: Erik Forsberg; Uno Landin, both of Vallingby, Sweden [73] Assigneez' Gunnar Fredrikson AB, Stockholm Sweden 625,277 3/1963 Belgium...................................85/68 843,129 8/1960 GreatBritain........................... 85/47 [22] Filed:

Aug. 24, 1970 App1.No.: 66,380

Primary Examiner--Henry C. Sutherland At tomeyDarby & Darby ABSTRACT A device for securing building parts such as a base plate to a concrete foundation wherein a nut is threadedly engaged with a rod having a cutting edge,

References Cited the rodbeing disposed in a tube anchored inthe foun- UNITED S A PATENTS dation, whereby the rod can be screwed into the material of the base plateby turning the nut.

1,342,201 6/1920 Beckwith........ .........................85/68 2,424,037 7/1947 Jenkins.......... ........,.............85/32V 4 Claims, 12 Drawing Figures \\\\\\\N\\\\\\ t: z ///z .1/251/2 IIIIIIIII'II DEVICE FOR MOUNTING WALL PARTS Wall elements, and particularly panels, are mounted at present usually in that steel sections fastened on the wall element or panel are secured in the building structure. Another method is to mount the panel on steel sections anchored in the building structure. When the steel sections are attached to the panel, the sections are mounted in the building structure either from the outside or inside. One of the disadvantages of outside mounting is that the work must be carried out from scaffolds. Inside mounting, furthermore, requires the building structure to be provided with recesses for concealing the mounting. A concealed mounting can alternatively also be obtained by the arrangement of special recesses or by attaching the inside covering of the panel after the panel has been mounted on the structure. It can generally be said of the known mounting methods that the mounting of the panel requires an accurate layout of the steel sections. As further disadvantages of these mounting methods can be mentioned that the recesses made in the structure require after-mending, that the inside covering of the panel must be completed, and that the steel sections infringe upon the total joint.

These disadvantages are eliminated by the present invention, which is characterized in that the mounting device comprises an inwardly threaded tube to be cast in the building structure, and a rod with corresponding outward threads for screwing into the tube, which rod has at one end a cutting edge and is of such a design that for its turning and drilling into the building structure it can be actuated from the side along its portion extending outside the casting-in tube.

The invention is described in the following by way of an example, with reference to the drawings, in which FIG. 1 shows a mounting device according to the invention seen from the side,

FIG. 2 shows a longitudinal section of the device according to FIG. 1,

FIG. 3 shows the mounting device seen from above,

FIG. 4 shows a tube screw included in the mounting device,

FIG. 4a shows a side sectional view of a tube screw having a non-cylindrical shape.

FIG. 5 shows said screw from above,

FIG. 6 shows a nut included in the mounting device,

FIG. 5a shows a top view of said tube screw of FIG. 4a.

FIG. 7 shows said nut in a longitudinal section,

FIG. 8 shows the jointing of two casting-in tubes,

FIG. 9 shows the mounting of a wall part on a building structure by a mounting device according to the invention, and

FIG. 10 shows a panel in its entirety mounted in a building structure.

The mounting device 1 comprises a tube 2 to be cast in, a screw 3 and a nut 4. Said tube 2 is provided outwardly with threads 5 intended to render possible the jointing of casting-in tubes by a jointing sleeve (FIG. 8) as well as to improve the anchorage of the casting-in tube in the concrete. The casting-in tube further is provided inwardly with threads 6 for coaction with the screw 3 so that the screw upon turning is moved axially in relation to the casting-in tube 2. Said tube 2 is provided at one end with a plate 7 having folded-up edges 8 and a central hole of such a size that the screw 3 can extend therethrough. The height of the edges 8 is so adjusted that it exceeds the height of the nut 4. The plate 7 further is provided with small mounting holes 9 intended to be used at the mounting of the tube 2 in the concrete mould prior to the pouring. The plate may also be provided with a cover 10 to prevent penetration of concrete.

The screw 3 has on its outside two longitudinal grooves 11. The hole 13 of the nut 4 has smooth sides, which are provided with inwardly directed studs or cams 12 extending into the grooves 11. The hole 13 and the cams 12 are so dimensioned that the nut freely can be moved along the screw without turning relative thereto. Hereby the screw 3 is forced to turn simultaneously with the nut. The screw proper, of course, may instead be given a square cross-section, for example rectangular as shown in FIGS. 4a and 5a, with rounded and threaded comers for being able to turn the screw by direct action of a tool. The screw 3, furthermore, is

provided at one end with a cutting edge 14 of a suitable shape. A hole 15 preferably extends through the screw 3 for collecting chips formed at the drilling and screwing of the screw into the panel.

The mounting of a panel or wall element is carried out, as should be evident from the above, in such a way that upon turning of the nut 4 the screw 3 simultaneously is turned and screwed upwardly (FIG. 9) in relation to the tube 2 cast-in in the building structure 16 and drilled into the wall element or panel 17, which by means of distance pieces or the like is fitted in place in relation to the building structure. The hole 13 and studs 12 being so dimensioned that the nut 4 freely can be moved along the screw 3, the nut during the mounting always can assume a position suitable for the mounting.

The nut 4 may be turned by well known conventional means (for example an open-end off-set wrench) by inserting the appropriate tool between the panel 17 to be mounted and the building structure 16. This space is shown in FIG. 9 by the wavy sinusoidal-like line. .The nut may also be reached through an appropriate notch in the panel 17 if it is desired to have a flush fit between the panel 17 and the building structure 16.

FIG. 10 shows a mounted panel from which is evident the approximate position of the mounting devices 1. In said Figure the devices are joined in pairs by the jointing sleeves 18 and extend through floors and walls, respectively.

The mounting device, of course, can be varied in several different ways within the scope of the invention. The plate, for example, with the folded-up edges may have a shape other than the circular shape in the embodiment shown, and the screw 3 simply may be manufactured of a rod material. The nut, as a matter of fact, may be given a shape other than the hexagonal shape shown, and for the turning of the nut or screw special spanners may be used.

What we claim is:

l. A device for mounting wall parts, comprising:

a. a tubular body;

b. said tubular body having an interior thread;

0. a rod having an aperture along its longitudinal axis;

d. said rod having an external thread; whereby the external thread of said rod may threadably engage the interior thread of said tubular body;

e. said rod further having a cutting edge at one extreme thereof;

having an aperture corresponding to the aperture of i said tubular body so that said rod may freely pass through said aperture in said plate and threadably engage with said interior thread of said tubular body, said plate further having projections along its entire perimeter extending from the plate in a direction away from said tubular body.

3. The device of claim 2 wherein the height of said edges of said plate is greater than the height of said nut.

4. The device of claim 1 wherein said tubular body has threads on its external wall. 

1. A device for mounting wall parts, comprising: a. a tubular body; b. said tubular body having an interior thread; c. a rod having an aperture along its longitudinal axis; d. said rod having an external thread; whereby the external thread of said rod may threadably engage the interior thread of said tubular body; e. said rod further having a cutting edge at one extreme thereof; f. said rod being substantially cylindrical and having at least one axial external groove along the entire outer wall of said rod and further comprising a nut having an internal aperture capable of slidably engaging with said rod, said nut having projections directed inwardly and radially from the interior wall of said nut and corresponding to said grooves iN said rod, whereby the rotation of said nut longitudinally moves said rod without longitudinally moving said nut.
 2. The device of claim 1 further comprising a plate attached to one extreme of said tubular body, said plate having an aperture corresponding to the aperture of said tubular body so that said rod may freely pass through said aperture in said plate and threadably engage with said interior thread of said tubular body, said plate further having projections along its entire perimeter extending from the plate in a direction away from said tubular body.
 3. The device of claim 2 wherein the height of said edges of said plate is greater than the height of said nut.
 4. The device of claim 1 wherein said tubular body has threads on its external wall. 